Before disassembling the cylinder head, it is necessary to prepare tools «11.9.000», «11.9.001», «11.9.009», «11.9.011» And «11.9.015». Dismantling of a head of the block of cylinders is necessary for carrying out in a following order. Remove it from the engine and remove the glow plugs using new or modified tools «11.6.050».
Unscrew the exhaust manifold mounting nuts in sequence from the edge to the middle and remove it.
Install the cylinder head on the tool «11.9.000» (mounting frame) and secure with standard screws. Install fixture «11.9.008» (pic. 6.71) flat surface on the cylinder head on the combustion chamber side. Attach fixture «11.9.006» and fix it with a tool «11.9.005». Attach the cylinder head to the tool «11.9.001».
Attach the valve stem «11.9.015» on the lever «11.9.009». Press on the valve and hook the fixture «11.9.011». Remove valve stem seals, crackers and valve springs in the same way as gasoline engines. Arrange the removed valves and their elements strictly according to their cylinder numbers.
Assemble the cylinder head in the reverse order, while it is necessary to check the valve guides for wear, replace all valve stem seals and exhaust manifold gaskets with new ones. Tighten installed glow plugs to 18 Nm (1.8 kgf·m). Lubricate the threads of the mounting studs with a copper-containing paste of type «CRC» or «Molykote-HSC» and assemble the engine.